[FIX] stock: stock user shall scrap
[FIX] stock: stock user shall scrap

Before this, the stock user had readonly ACL on the scraping action. He
therefore could not scrap products during his normal operations. It is assumed,
that this was not an intended default, as not being otherwise documented.

Closes #15955

ygol/odoo,hip-odoo/odoo,ygol/odoo,hip-odoo/odoo,ygol/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo,hip-odoo/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo,hip-odoo/odoo